package com.heima.article.service.impl;

import com.baomidou.mybatisplus.core.toolkit.Wrappers;
import com.baomidou.mybatisplus.extension.service.impl.ServiceImpl;
import com.heima.article.mapper.*;
import com.heima.article.service.ApArticleService;
import com.heima.feigns.behavior.BehaviorFeign;
import com.heima.feigns.user.UserFeign;
import com.heima.model.article.dtos.ArticleDto;
import com.heima.model.article.dtos.ArticleHomeDto;
import com.heima.model.article.dtos.ArticleInfoDto;
import com.heima.model.article.pojos.*;
import com.heima.model.behavior.dtos.ApArticleRelationDto;
import com.heima.model.common.constants.ArticleConstants;
import com.heima.model.common.dtos.ResponseResult;
import com.heima.model.common.enums.AppHttpCodeEnum;
import com.heima.model.user.pojos.ApUserFollow;
import com.heima.utils.threadlocal.AppThreadLocalUtils;
import lombok.extern.slf4j.Slf4j;
import org.springframework.beans.BeanUtils;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.beans.factory.annotation.Value;
import org.springframework.stereotype.Service;
import org.springframework.transaction.annotation.Transactional;

import java.util.Date;
import java.util.HashMap;
import java.util.List;
import java.util.Map;


@Service
@Transactional
@Slf4j
public class ApArticleServiceImpl extends ServiceImpl<ApArticleMapper, ApArticle> implements ApArticleService {
    @Autowired
    AuthorMapper authorMapper;
    @Autowired
    ApArticleMapper apArticleMapper;
    @Autowired
    ApArticleConfigMapper apArticleConfigMapper;
    @Autowired
    ApArticleContentMapper apArticleContentMapper;
    @Value("${file.oss.web-site}")
    private String webSite;
    /**
     * 保存或修改文章
     *
     * @param articleDto
     * @return
     */
    @Override
    public ResponseResult saveArticle(ArticleDto articleDto) {
        // 参数检查
        if (articleDto == null) {
            return ResponseResult.errorResult(AppHttpCodeEnum.PARAM_INVALID);
        }

        //1 保存article 文章数据， 设置作者id
        ApArticle apArticle = new ApArticle();
        BeanUtils.copyProperties(articleDto, apArticle);
        // 设置作者的id
        ApAuthor apAuthor = authorMapper.selectOne(Wrappers.<ApAuthor>lambdaQuery()
                .eq(ApAuthor::getName, apArticle.getAuthorName()));
        if (apAuthor == null) {
            return ResponseResult.errorResult(AppHttpCodeEnum.DATA_NOT_EXIST);
        }
        apArticle.setAuthorId(apAuthor.getId().longValue());

        if (articleDto.getId() == null) {  // 保存

            // 普通文章
            apArticle.setComment(0);
            apArticle.setViews(0);
            apArticle.setCollection(0);
            apArticle.setLikes(0);
            // 保存
            save(apArticle);  // 返回ID

            //2 保存article_config 数据
            ApArticleConfig apArticleConfig = new ApArticleConfig();
            apArticleConfig.setIsForward(true);
            apArticleConfig.setIsComment(true);
            apArticleConfig.setIsDown(false);
            apArticleConfig.setIsDelete(false);
            // 文章id
            apArticleConfig.setArticleId(apArticle.getId());
            apArticleConfigMapper.insert(apArticleConfig);

            //3 保存文章article_content 数据
            ApArticleContent apArticleContent = new ApArticleContent();
            apArticleContent.setContent(articleDto.getContent());
            // 文章ID
            apArticleContent.setArticleId(apArticle.getId());
            apArticleContentMapper.insert(apArticleContent);


        } else { // 修改

            // 查询文章
            ApArticle article = getById(articleDto.getId());
            if (article == null) {
                log.info("ApArticle getById is null: {}", articleDto.getId());

                return ResponseResult.errorResult(AppHttpCodeEnum.DATA_NOT_EXIST);
            }

            // 修改 apArticle
            updateById(apArticle);

            // 修改 apArticleContent
            ApArticleContent articleContent = apArticleContentMapper.selectOne(Wrappers.<ApArticleContent>lambdaQuery()
                    .eq(ApArticleContent::getArticleId, articleDto.getId()));
            if (articleContent == null) {
                log.info("articleContent getById is null: {}", articleDto.getId());
                return ResponseResult.errorResult(AppHttpCodeEnum.DATA_NOT_EXIST);
            }
            articleContent.setContent(articleDto.getContent());
            apArticleContentMapper.updateById(articleContent);

        }

        //4 返回结果  文章保存后的主键 ID
        return ResponseResult.okResult(apArticle.getId());
    }

    /**
     * 根据参数加载文章列表
     *
     * @param loadtype 1为加载更多  2为加载最新
     * @param dto
     * @return
     */
    @Override
    public ResponseResult load(Short loadtype, ArticleHomeDto dto) {
        //TODO:
        /*1参数检验*/
        if (dto == null) {
            return ResponseResult.errorResult(AppHttpCodeEnum.PARAM_REQUIRE);
        }
        /*页大小*/
        if (dto.getSize() == null || dto.getSize() <= 0) {
            dto.setSize(10);
        }
        /*频道*/
        if (dto.getTag() == null) {
            dto.setTag(ArticleConstants.DEFAULT_TAG);
        }
        /*时间*/
        if (dto.getMaxBehotTime() == null) {
            dto.setMaxBehotTime(new Date());
        }
        if (dto.getMinBehotTime() == null) {
            dto.setMinBehotTime(new Date());
        }
        /*类型判断*/
        if (!loadtype.equals(ArticleConstants.LOADTYPE_LOAD_MORE) && !loadtype.equals(ArticleConstants.LOADTYPE_LOAD_NEW)) {
            loadtype = ArticleConstants.LOADTYPE_LOAD_MORE;
        }
        /*执行查询*/
        List<ApArticle> articleList = apArticleMapper.loadArticleList(loadtype, dto);
        /*返回结果*/
        ResponseResult responseResult = ResponseResult.okResult(articleList);
        responseResult.setHost(webSite);
        return responseResult;
    }


    /**
     * 查询文章详情
     * @param dto 文章id
     * @return
     */
    @Override
    public ResponseResult loadArticleInfo(ArticleInfoDto dto) {
        // 1 参数检查
        if (dto==null || dto.getArticleId() == null) {
            return ResponseResult.errorResult(AppHttpCodeEnum.PARAM_INVALID);
        }

        Long id = dto.getArticleId();

        //2 查询文章配置信息config
        ApArticleConfig articleConfig = apArticleConfigMapper.selectOne(Wrappers.<ApArticleConfig>lambdaQuery().eq(ApArticleConfig::getArticleId, id));
        if (articleConfig == null
                || articleConfig.getIsDown()
                || articleConfig.getIsDelete()) {
            return ResponseResult.errorResult(AppHttpCodeEnum.DATA_NOT_EXIST, "文章已下架");
        }

        //3 查询文章内容
        ApArticleContent articleContent = apArticleContentMapper.selectOne(Wrappers.<ApArticleContent>lambdaQuery().eq(ApArticleContent::getArticleId, id));
        if (articleContent == null) {
            return ResponseResult.errorResult(AppHttpCodeEnum.DATA_NOT_EXIST, "文章不存在");
        }

        //4 返回封装结果
        Map<String, Object> resultMap = new HashMap<>();
        resultMap.put("config", articleConfig);
        resultMap.put("content", articleContent);

        return ResponseResult.okResult(resultMap);
    }


    @Autowired
    private BehaviorFeign behaviorFeign;
    @Autowired
    private UserFeign userFeign;
    @Autowired
    ApCollectionMapper apCollectionMapper;


    /**
     * 加载文章详情的初始化配置信息，比如关注、喜欢、不喜欢等
     *
     * @param dto
     * @return
     */
    @Override
    public ResponseResult loadArticleBehavior(ArticleInfoDto dto) {
        //1 参数校验
        if(dto == null || dto.getArticleId() == null || dto.getAuthorId() == null){
            return ResponseResult.okResult(new HashMap<>());
        }
        boolean iscollection=false,isfollow=false;

        // 是否关注
        ApAuthor apAuthor = authorMapper.selectById(dto.getAuthorId());
        if(apAuthor!=null){
            ApUserFollow apUserFollow = userFeign.findByUserIdAndFollowId(
                    AppThreadLocalUtils.getUser().getId(), apAuthor.getUserId());
            if(apUserFollow!=null){
                isfollow=true;
            }
        }

        // 是否点赞/不喜欢
        ApArticleRelationDto relationDto = new ApArticleRelationDto();
        relationDto.setArticleId(dto.getArticleId());
        relationDto.setEntryId(AppThreadLocalUtils.getUser().getId());
        relationDto.setType((short) 1);
        Map behaviorMap = behaviorFeign.findApArticleRelation(relationDto);

        // 是否收藏
        /*if (behaviorMap.get("entryId") != null) {
            ApCollection apCollection = apCollectionMapper.selectOne(Wrappers.<ApCollection>lambdaQuery()
                    .eq(ApCollection::getArticleId,dto.getArticleId())
                    .eq(ApCollection::getEntryId, behaviorMap.get("entryId") )
                    .eq(ApCollection::getType, ApCollection.Type.ARTICLE.getCode() )
            );

            if (apCollection != null) {
                iscollection = true;
            }
        }*/

        //3 返回结果
        Map resultMap = new HashMap();
        resultMap.put("isfollow", isfollow);
//        resultMap.put("iscollection", iscollection);
        resultMap.putAll(behaviorMap);

        return ResponseResult.okResult(resultMap);
    }

}
